Query for displaying columns in reverse order ?

Hi All,
I want to select/display all the columns of a table in reverse order. The no. of columns is arbitrary.
Can anyone please help me on this.\
Regards
-AKJ

apart from the physical data store implementation,
are columns actually guaranteed ordering ? Guaranteed.... probably not, but they are in the data dictionary in the order in which they are created, so are known to be consistent in that respect.
I don't think it's correct to refer to C(1)...C(n) ,
they are just columns, there's no particular reason
why one should come first or lastLikewise, I don't see the point in selecting columns out in a particular order unless you're trying to spool the output to a file.

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select column_name from user_tab_columns
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Hello,
I know this is a very common question asked in the forum. I have searched regading this, i did find some threads, but i was not able to achieve what i require from the answers posted. So anybody please help me.
I have a table which is having multiple columns as follows:
Insert into table_1 (X,Y,Z,A,B,C,D,E,F,G,H,I) values (0,0,2,0,0,1,3,0,0,0,0,0);I want to convert the result into a two column, multiple rows i.e., I want the result as follows:
Col1 Col2
X      0
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Is this what you are expecting:
SQL> WITH T AS
2 (
3 SELECT 0 X, 0 Y, 2 Z, 0 A, 0 B, 1 C, 3 D, 0 E, 0 F, 0 G, 0 H, 0 I FROM DUAL
4 )
5 SELECT 'X' col1, X col2 FROM T
6 UNION ALL
7 SELECT 'Y' col1, Y col2 FROM T
8 UNION ALL
9 SELECT 'Z' col1, Z col2 FROM T
10 UNION ALL
11 SELECT 'A' col1, A col2 FROM T
12 UNION ALL
13 SELECT 'B' col1, B col2 FROM T
14 UNION ALL
15 SELECT 'C' col1, C col2 FROM T
16 UNION ALL
17 SELECT 'D' col1, D col2 FROM T
18 UNION ALL
19 SELECT 'E' col1, E col2 FROM T
20 UNION ALL
21 SELECT 'F' col1, F col2 FROM T
22 UNION ALL
23 SELECT 'G' col1, G col2 FROM T
24 UNION ALL
25 SELECT 'H' col1, H col2 FROM T
26 UNION ALL
27 SELECT 'I' col1, I col2 FROM T
28 /
C       COL2
X          0
Y          0
Z          2
A          0
B          0
C          1
D          3
E          0
F          0
G          0
H          0
C       COL2
I          0
12 rows selected.

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Releasing planed to released
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hi all,
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in AP invoice
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code--descqtyprice--
total
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100 -
500
query should display this row as
code--desc--
price
I0001--XXXXXXX--
100
I0001--XXXXXXX--
100
I0001--XXXXXXX--
100
I0001--XXXXXXX--
100
I0001--XXXXXXX--
100
=================================
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Hi Sandip,
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Give me reward points,
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Query for Identifying column changes

Hi Guys,
Need help in getting a query for my scenario.
I have 2 table Table A and Table B. Both have same columns and data type.
Table A:
Id PersonId Name Code Date
1 1000 John M 2014-07-28
2 1001 Mary B 2014-07-28
3 1002 Robin R 2014-07-28
4 1003 Maxie N 2014-07-28
Table B:
Id PersonId Name Code Date
1 1000 John 2014-07-28
2 1001 Hary S 2014-07-28
3 1002 Justin Q 2012-07-28
4 1003 Maxie P 2013-07-28
My situation is:
I need to compare both the tables and need to identify the rows that has a change in all columns, if all other columns are not changed and Code is changed to blank, i need to ignore that row.
The expected outcome is:
Id PersonId Name Code Date
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3 1002 Justin Q 2012-07-28
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I found the solution in a easy way i guess...
select * from
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case when code is null then
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else
a.code
end as Code,
DATE FROM TABLE B
MINUS
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i am testing few scenarios looks like working.......

Performance of update query for single column vs multiple column

Hi All,
I could not find any answer for this, does it ever matter in terms of performance updating single column versus multiple column in a single update query.
For eg. table consisting of 15 columns, what would be the difference in performance when one column is update in the single query against another update query where 15 columns are updated.
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If updated columns aren´t on where clause , then the only impact of 15 columns will be a increase on redo generation, and a possible chainning row.
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The performance will be slower.
Regards
Helio Dias.
http://heliodias.com
OCE SQL, OCP 9i

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Hello everyone,
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<Category>FRAME</Category>
<ProductID>1</ProductID>
<Name xmlns="http://orcl.com">Frame </Name>
<Type>BASIC</Type>
<Code>INSTALL</Code>
<NodeID>1</NodeID>
</Data>
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<SubType>FRLY - BASIC</SubType>
<ActionCode>INSTALL</ActionCode>
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<Location/>
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Dear experts,
I want notification query for delivery should not be add without fill up the information in machine number column (UDF Column- U_MCnumber)
Please do needful.
Thanks & Regards,
Akshata

Dear all,
I have got query ...........
If @object_type = '15'and @transaction_type= ('A')
BEGIN
If Exists (Select T0.DocEntry from ODLN T0 Inner Join DLN1 T1
On T0.DocEntry=T1.DocEntry INNER JOIN OITM T3 ON T3.ItemCode = T1.ItemCode
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And T0.DocEntry = @list_of_cols_val_tab_del )
BEGIN
Select @error = -1,
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End
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Thanks

That would not be a hard query to write. If you have started on the query, you may paste it if you are having difficulties getting the desired result.
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E.g.
if the data is as follows:
ORACLE
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An alternative would be a MODEL clause solution:Nice!
Here another alternative with only one measure:
SQL> create table t
2 as
3 select 'bocajijA' col1 from dual union all
4 select 'ORACLE' from dual union all
5 select null from dual
6 /
Tabel is aangemaakt.
SQL> select old_col
2       , col1
3    from t
4   model
5         partition by (col1 old_col)
6         dimension by (0 i)
7         measures (col1)
8         rules iterate(10000) until (iteration_number = length(col1[0])-1)
9         ( col1[0]
10           = substr(col1[0],1,iteration_number) ||
11             substr(col1[0],length(col1[0]),1) ||
12             substr(col1[0],iteration_number + 1, length(col1[0])-iteration_number-1)
13         )
14 /
OLD_COL COL1
bocajijA Ajijacob
ORACLE   ELCARO
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Rob.

Single query for displaying all but 1 column values for all tables

Hi,
All the tables have SYS_CREATION_DATE column.
But I dont want to display this column value
Can someone suggest some way in which i could achive this?
Oracle version:11gR1
OS:SunOS
Cheers,
Kunwar
Edited by: user9131570 on Jul 6, 2010 7:57 PM

user9131570 wrote:
@Tubby
I *want to display table-wise the values of all but 1(SYS_CREATION_DATE) columns in my database.*
I need this in order to compare it to another database for all these values .Let me make a wild guess at what you are getting at.
Given these two tables
create table emp
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    empaddr   varchar2(15),
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create table dept
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select empid,
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from emp;with
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thanq

Hi,
Use t-code
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Edited by: Kapildev Farakte on Jan 8, 2010 4:15 AM

How to display photos in reverse order (new to old) in photo stream?

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No, but if you wish to provide feedback to Apple you can do so using the link.
http://www.apple.com/feedback/

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HI Experts,
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1. 0-60 days
2. 61-90 days.
3. 91-120 days
4. 121-180 days.
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Hello Khan,
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(since i dont know your field names, i have given my own names)
if p_sixty = ''.
loop at itab.
     itab-sixty = ''.
     modify itab.
endloop.
endif.
if p_ninety = ''.
loop at itab.
     itab-ninety = ''.
     modify itab.
endloop.
endif.
if p_onety = ''.
loop at itab.
     itab-onety = ''.
     modify itab.
endloop.
endif.
if p_oneey = ''.
loop at itab.
     itab-oneey = ''.
     modify itab.
endloop.
endif.
loop at itab.
write:/ itab-sixty , itab-ninety, itab-onety, itab-oneey.
endloop.

Query for displaying columns in reverse order ?

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